IshGen 40:7 :ܘܫܦܝܪ ܐܒܐ ܕܫܘܚ̈ܠܦܐ ܡܫܬܡܗ ܣܗܪܐ‏ : the moon is quite rightly termed "father" of transformations
See the entire entry for ˀaḇ, ˀabbā/ˀăḇā n.m. father